Hi Kane,
Regarding your issue, I've added a fix on your site and now when posting / editing a blog post, the stream that posted to JomSocial should contain the image from the blog post
Below is the file I've modified on your site.
JOOMLA/administrator/components/com_easyblog/includes/jomsocial/jomsocial.php
The same fix will be added into next release of EasyBlog
Hope this help and have a nice day!